Virus diversity associated with grapevine leafroll disease

Grapevine leafroll disease is the most economically important of the grapevine virus diseases and has been reported to contribute up to 60% loss in yield of fruit. The grapevine leafroll-associated viruses (GLRaVs) are the collective infectious agents commonly found in GLD-symptomatic grapevines, where Grapevine leafroll-associated virus 3 (GLRaV-3) (genus Ampelovirus, family Closteroviridae) is the primary causative agent.